Home / 70,431.48-97,188.12-40,213.62

Finding the Fourth Proportional to 70,431.48, 97,188.12 and 40,213.62

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Solution

The fourth proportional to 70,431.48, 97,188.12 and 40,213.62 is: 55,490.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,431.48 : 97,188.12 = 40,213.62 : x
  2. Step 2: Convert to fraction form
    70,431.48/97,188.12 = 40,213.62/x
  3. Step 3: Cross multiply
    70,431.48x = 97,188.12 × 40,213.62
  4. Step 4: Simplify right side
    70,431.48x = 3,908,286,126.19
  5. Step 5: Solve for x
    x = 3,908,286,126.19/70,431.48
  6. Step 6: Final answer
    x = 55,490.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.